# 🗃️ Compression Advisor Read-only

Tables over 100 MB with compression disabled. OLTP compression typically delivers 3–5× space reduction; HCC (Exadata) delivers 10×+. All estimates are conservative.

Connection:
Scanning uncompressed segments…
Querying DBA_SEGMENTS + DBA_TABLES
🗃️
Select a connection and click "Fetch"
Lists tables > 100 MB with compression=DISABLED, sorted by size.
Uncompressed Tables (> 100 MB)
Already Compressed